| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.32 | USD | 20250918 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 703.38 | USD | 20250918 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 689.32 | USD | 20250918 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 703.38 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.32 | USD | 20250918 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 759.65 | USD | 20250918 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 773.72 | USD | 20250918 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| JIN Yimeng Group Co., Ltd. | China national standards | MT | 844.06 | USD | 20250918 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 829.99 | USD | 20250918 |